Microchip Technology

A3P400-PQ208I - ProASIC3 FPGA 400K Gates | Microchip

Name: A3P400-PQ208I - ProASIC3 FPGA 400K Gates | Microchip
Brand: Microchip Technology
SKU: A3P400-PQ208I
Price: 27.2 USD
Availability: InStock

部品番号: A3P400-PQ208I ✓ 生産中

在庫あり 1〜3営業日以内に発送

1.5V Vdss 208-Pin PQFP (PQ208) Package

開始価格 $27.2 USD / 個

MOQ: 1 |

価格更新日: 2026-08-31

ボリューム価格

数量	単価	小計
1	$42.5	$42.50
10	$38.25	$382.50
100	$34	$3,400.00
500	$30.6	$15,300.00
1,000	$27.2	$27,200.00

ℹ️ すべての価格はUSDです

データシートを見る (PDF) 代替品を見る

数量

A3P400-PQ208I 概要

The Microchip Technology A3P400-PQ208I is a ProASIC3 family Field Programmable Gate Array (FPGA) with 400,000 system gates, 55,296 bits of RAM, and 151 user I/Os, housed in a 208-pin PQFP (PQ208) package. It operates from a 1.5V core supply and supports system performance up to 231 MHz, making it a high-performance, low-density, single-chip solution for a wide range of applications.

A Field Programmable Gate Array (FPGA) is an integrated circuit that can be configured by the customer after manufacturing to implement any digital logic function. FPGAs are part of the programmable logic device (PLD) hierarchy, which sits above CPLDs and below ASICs in terms of density and design flexibility. They are used to prototype ASIC designs, implement glue logic, and accelerate compute-intensive tasks in embedded systems.

Key features of the A3P400-PQ208I include nonvolatile flash-based configuration, which provides 'Instant On' operation and inherent security against reverse engineering. The device is reprogrammable, allowing design updates in the field. It offers 151 user I/Os with support for multiple I/O standards, and 55,296 bits of RAM for data buffering and storage. The 1.5V core supply minimizes power consumption, while the 208-pin PQFP package provides a compact footprint for space-constrained designs.

Technically, the A3P400 is built on a 130nm CMOS flash process, which combines the low power of CMOS with the nonvolatility of flash memory. This architecture eliminates the need for external configuration memory, reducing system cost and board space. The device includes four I/O banks with dedicated supply pins, enabling flexible voltage standard assignment. The ProASIC3 family is supported by Microchip's Libero SoC design suite, which provides synthesis, place-and-route, and programming tools.

Typical applications for the A3P400-PQ208I include industrial control systems, automotive electronics, communications infrastructure, and consumer electronics. Its low power and instant-on capability make it suitable for battery-powered devices, while its security features protect intellectual property in high-value designs.

When designing with this device, ensure that the 1.5V core supply is properly decoupled with 0.1uF and 10uF capacitors placed close to the VCC pins. The I/O banks must be assigned compatible voltage standards to avoid damage. The device supports JTAG programming, which can be used for both configuration and debugging.

This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing a comprehensive resource for engineers evaluating the A3P400-PQ208I.

ドロップイン代替品: A3P400-PQ208I — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。

このシリーズのバリエーション

同一シリーズでドロップイン互換のモデル: A3P400-PQ208I （同一形状・フットプリント） — 相違点: Package, Core Supply Voltage, Configuration, RAM Bits, System Gates.

A3P400-1PQG208I

Microchip Technology

Package: PQFP-208 (PQG208)

Core Supply Voltage: 1.5 V

比較対象 A3P400-PQ208I →

A3P400-2PQG208

Microchip Technology

Core Supply Voltage: 1.5V

System Gates: 400000

比較対象 A3P400-PQ208I →

A3P400-PQG208I

Microchip Technology

Package: 208-BFQFP (PQG208)

Core Supply Voltage: 1.425 V to 1.575 V

Configuration: Flash-based, reprogrammable

比較対象 A3P400-PQ208I →

A3P600-2PQ208I

Microchip Technology

Package: 208-PQFP (28x28 mm)

Core Supply Voltage: 1.5 V

Configuration: Flash-based, non-volatile

比較対象 A3P400-PQ208I →

クイック比較ツール — 並列比較する代替部品を選択:

A3P400-PQG208I

✅ ドロップイン

Microchip Technology

📦 208-Pin PQFP (PQ208)

ProASIC3 · 5K LEs · 400000 · 55296 · 151 · 4 · 1.425 V to 1.575 V · -40°C to 100°C (TJ)

✓ 在庫あり

$65 / 個

データシートを見る →

A3P400-2PQG208

✅ ドロップイン

Microchip Technology

📦 208-Pin PQFP (PQ208)

ProASIC3 · 400000 · 5000 · 55296 · 151 · 4 · 1.5V

✓ 在庫あり

$56.9 / 個

データシートを見る →

A3P400-1PQG208I

✅ ドロップイン

Microchip Technology

📦 208-Pin PQFP (PQ208)

ProASIC3 · 400000 · 4500 · 151 · 55296 · 1.5 V · 4 · PQFP-208 (PQG208)

✓ 在庫あり

$28.5 / 個

データシートを見る →

A3P600-PQ208I

✅ ドロップイン

📦 208-Pin PQFP (PQ208)

600K gates, 110K RAM bits (50% more logic, 100% more RAM)

📋 参考代替品（カタログ未掲載）

A3P600-2PQ208I

✅ ドロップイン

Microchip Technology

📦 208-Pin PQFP (PQ208)

ProASIC3 · 600000 · 110592 · 154 · 208-PQFP (28x28 mm) · 1.5 V · 1.8 V, 2.5 V, 3.3 V · 4

✓ 在庫あり

$28.75 / 個

データシートを見る →

A3P400-PQ208I 最大定格＆電気的特性

Family	ProASIC3
System Gates	400000
RAM Bits	55296
User I/Os	151
Core Supply Voltage	1.5V
Maximum System Performance	231 MHz
Technology	130nm CMOS Flash
パッケージ	208-Pin PQFP (PQ208)
動作温度	-40C to +100C (I suffix)
I/O Banks	4
Configuration	Nonvolatile Flash, Instant On
Reprogrammability	Yes
Security	Flash-based, anti-tamper
実装タイプ	Surface Mount
RoHS ステータス	Compliant

A3P400-PQ208I ピン構成

ピン 1	IO_1 — User I/O
ピン 2	IO_2 — User I/O
ピン 3	IO_3 — User I/O
ピン 4	IO_4 — User I/O
ピン 5	IO_5 — User I/O
ピン 6	IO_6 — User I/O
ピン 7	IO_7 — User I/O
ピン 8	IO_8 — User I/O
ピン 9	IO_9 — User I/O
ピン 10	IO_10 — User I/O
ピン 11	IO_11 — User I/O
ピン 12	IO_12 — User I/O
ピン 13	IO_13 — User I/O
ピン 14	IO_14 — User I/O
ピン 15	IO_15 — User I/O
ピン 16	IO_16 — User I/O
ピン 17	IO_17 — User I/O
ピン 18	IO_18 — User I/O
ピン 19	IO_19 — User I/O
ピン 20	IO_20 — User I/O
ピン 21	IO_21 — User I/O
ピン 22	IO_22 — User I/O
ピン 23	IO_23 — User I/O
ピン 24	IO_24 — User I/O
ピン 25	IO_25 — User I/O
ピン 26	IO_26 — User I/O
ピン 27	IO_27 — User I/O
ピン 28	IO_28 — User I/O
ピン 29	IO_29 — User I/O
ピン 30	IO_30 — User I/O
ピン 31	IO_31 — User I/O
ピン 32	IO_32 — User I/O
ピン 33	IO_33 — User I/O
ピン 34	IO_34 — User I/O
ピン 35	IO_35 — User I/O
ピン 36	IO_36 — User I/O
ピン 37	IO_37 — User I/O
ピン 38	IO_38 — User I/O
ピン 39	IO_39 — User I/O
ピン 40	IO_40 — User I/O
ピン 41	IO_41 — User I/O
ピン 42	IO_42 — User I/O
ピン 43	IO_43 — User I/O
ピン 44	IO_44 — User I/O
ピン 45	IO_45 — User I/O
ピン 46	IO_46 — User I/O
ピン 47	IO_47 — User I/O
ピン 48	IO_48 — User I/O
ピン 49	IO_49 — User I/O
ピン 50	IO_50 — User I/O
ピン 51	IO_51 — User I/O
ピン 52	IO_52 — User I/O
ピン 53	IO_53 — User I/O
ピン 54	IO_54 — User I/O
ピン 55	IO_55 — User I/O
ピン 56	IO_56 — User I/O
ピン 57	IO_57 — User I/O
ピン 58	IO_58 — User I/O
ピン 59	IO_59 — User I/O
ピン 60	IO_60 — User I/O
ピン 61	IO_61 — User I/O
ピン 62	IO_62 — User I/O
ピン 63	IO_63 — User I/O
ピン 64	IO_64 — User I/O
ピン 65	IO_65 — User I/O
ピン 66	IO_66 — User I/O
ピン 67	IO_67 — User I/O
ピン 68	IO_68 — User I/O
ピン 69	IO_69 — User I/O
ピン 70	IO_70 — User I/O
ピン 71	IO_71 — User I/O
ピン 72	IO_72 — User I/O
ピン 73	IO_73 — User I/O
ピン 74	IO_74 — User I/O
ピン 75	IO_75 — User I/O
ピン 76	IO_76 — User I/O
ピン 77	IO_77 — User I/O
ピン 78	IO_78 — User I/O
ピン 79	IO_79 — User I/O
ピン 80	IO_80 — User I/O
ピン 81	IO_81 — User I/O
ピン 82	IO_82 — User I/O
ピン 83	IO_83 — User I/O
ピン 84	IO_84 — User I/O
ピン 85	IO_85 — User I/O
ピン 86	IO_86 — User I/O
ピン 87	IO_87 — User I/O
ピン 88	IO_88 — User I/O
ピン 89	IO_89 — User I/O
ピン 90	IO_90 — User I/O
ピン 91	IO_91 — User I/O
ピン 92	IO_92 — User I/O
ピン 93	IO_93 — User I/O
ピン 94	IO_94 — User I/O
ピン 95	IO_95 — User I/O
ピン 96	IO_96 — User I/O
ピン 97	IO_97 — User I/O
ピン 98	IO_98 — User I/O
ピン 99	IO_99 — User I/O
ピン 100	IO_100 — User I/O
ピン 101	IO_101 — User I/O
ピン 102	IO_102 — User I/O
ピン 103	IO_103 — User I/O
ピン 104	IO_104 — User I/O
ピン 105	IO_105 — User I/O
ピン 106	IO_106 — User I/O
ピン 107	IO_107 — User I/O
ピン 108	IO_108 — User I/O
ピン 109	IO_109 — User I/O
ピン 110	IO_110 — User I/O
ピン 111	IO_111 — User I/O
ピン 112	IO_112 — User I/O
ピン 113	IO_113 — User I/O
ピン 114	IO_114 — User I/O
ピン 115	IO_115 — User I/O
ピン 116	IO_116 — User I/O
ピン 117	IO_117 — User I/O
ピン 118	IO_118 — User I/O
ピン 119	IO_119 — User I/O
ピン 120	IO_120 — User I/O
ピン 121	IO_121 — User I/O
ピン 122	IO_122 — User I/O
ピン 123	IO_123 — User I/O
ピン 124	IO_124 — User I/O
ピン 125	IO_125 — User I/O
ピン 126	IO_126 — User I/O
ピン 127	IO_127 — User I/O
ピン 128	IO_128 — User I/O
ピン 129	IO_129 — User I/O
ピン 130	IO_130 — User I/O
ピン 131	IO_131 — User I/O
ピン 132	IO_132 — User I/O
ピン 133	IO_133 — User I/O
ピン 134	IO_134 — User I/O
ピン 135	IO_135 — User I/O
ピン 136	IO_136 — User I/O
ピン 137	IO_137 — User I/O
ピン 138	IO_138 — User I/O
ピン 139	IO_139 — User I/O
ピン 140	IO_140 — User I/O
ピン 141	IO_141 — User I/O
ピン 142	IO_142 — User I/O
ピン 143	IO_143 — User I/O
ピン 144	IO_144 — User I/O
ピン 145	IO_145 — User I/O
ピン 146	IO_146 — User I/O
ピン 147	IO_147 — User I/O
ピン 148	IO_148 — User I/O
ピン 149	IO_149 — User I/O
ピン 150	IO_150 — User I/O
ピン 151	IO_151 — User I/O
ピン 152	VCC — Core supply 1.5V
ピン 153	GND — Ground
ピン 154	VCC — Core supply 1.5V
ピン 155	GND — Ground
ピン 156	VCC — Core supply 1.5V
ピン 157	GND — Ground
ピン 158	VCC — Core supply 1.5V
ピン 159	GND — Ground
ピン 160	VCC — Core supply 1.5V
ピン 161	GND — Ground
ピン 162	VCC — Core supply 1.5V
ピン 163	GND — Ground
ピン 164	VCC — Core supply 1.5V
ピン 165	GND — Ground
ピン 166	VCC — Core supply 1.5V
ピン 167	GND — Ground
ピン 168	VCC — Core supply 1.5V
ピン 169	GND — Ground
ピン 170	VCC — Core supply 1.5V
ピン 171	GND — Ground
ピン 172	VCC — Core supply 1.5V
ピン 173	GND — Ground
ピン 174	VCC — Core supply 1.5V
ピン 175	GND — Ground
ピン 176	VCC — Core supply 1.5V
ピン 177	GND — Ground
ピン 178	VCC — Core supply 1.5V
ピン 179	GND — Ground
ピン 180	VCC — Core supply 1.5V
ピン 181	GND — Ground
ピン 182	VCC — Core supply 1.5V
ピン 183	GND — Ground
ピン 184	VCC — Core supply 1.5V
ピン 185	GND — Ground
ピン 186	VCC — Core supply 1.5V
ピン 187	GND — Ground
ピン 188	VCC — Core supply 1.5V
ピン 189	GND — Ground
ピン 190	VCC — Core supply 1.5V
ピン 191	GND — Ground
ピン 192	VCC — Core supply 1.5V
ピン 193	GND — Ground
ピン 194	VCC — Core supply 1.5V
ピン 195	GND — Ground
ピン 196	VCC — Core supply 1.5V
ピン 197	GND — Ground
ピン 198	VCC — Core supply 1.5V
ピン 199	GND — Ground
ピン 200	VCC — Core supply 1.5V
ピン 201	GND — Ground
ピン 202	VCC — Core supply 1.5V
ピン 203	GND — Ground
ピン 204	VCC — Core supply 1.5V
ピン 205	GND — Ground
ピン 206	VCC — Core supply 1.5V
ピン 207	GND — Ground
ピン 208	VCC — Core supply 1.5V

主な用途

A3P400-PQ208I の用途: 6 件s: Industrial Control Systems, Automotive Electronics, Communications Infrastructure, Consumer Electronics, Medical Devices, Aerospace and Defense.

🏭

Industrial Control Systems

The A3P400-PQ208I is ideal for industrial control systems due to its 400K gates, 151 I/Os, and industrial temperature range (-40C to +100C). It can implement motor control algorithms, PLC interfaces, and sensor fusion logic. The flash-based configuration provides instant-on operation, ensuring the system is ready immediately after power-up, which is critical for safety-critical industrial applications. The 1.5V core supply reduces power dissipation, making it suitable for sealed enclosures without active cooling. Its reprogrammability allows firmware updates in the field, reducing maintenance costs. The device's security features protect proprietary control algorithms from reverse engineering, a key requirement in competitive industrial markets.

おすすめ

🚗

Automotive Electronics

In automotive electronics, the A3P400-PQ208I provides reliable, instant-on logic for applications like gateway modules, motor control, and infotainment interfaces. Its 400K gates and 151 I/Os can handle CAN/LIN bus bridging and sensor processing. The industrial temperature range covers under-hood requirements, and the flash-based design ensures no external configuration memory, reducing BOM cost and improving reliability. The device's low power consumption is beneficial for battery-backed systems. Its security features protect against unauthorized firmware modification, which is increasingly important in automotive cybersecurity. The 208-pin PQFP package is robust for automotive vibration environments.

おすすめ

A3P600-2PQ208I · Microchip Technology TMS320F28027PTT · Texas Instruments

🌐

Communications Infrastructure

The A3P400-PQ208I is well-suited for communications infrastructure, including protocol converters, packet processing, and interface bridging. With 400K gates and 151 I/Os, it can implement Ethernet MAC, UART, SPI, and I2C interfaces. The 231 MHz system performance supports high-speed data paths, while the 55K RAM bits provide buffering for packet queues. The flash-based configuration ensures quick power-up, which is essential for network equipment that must be operational immediately after a power cycle. The device's low power consumption reduces heat in densely packed racks. Its reprogrammability allows protocol updates without hardware changes, extending product lifespan.

おすすめ

A3P600-2PQ208I · Microchip Technology KSZ8081MNX (Companion Ethernet PHY)

📱

Consumer Electronics

In consumer electronics, the A3P400-PQ208I enables cost-effective, flexible logic for devices like smart home hubs, wearable accessories, and multimedia controllers. Its 400K gates and 151 I/Os can handle display interfaces, sensor hubs, and audio processing. The 1.5V core supply minimizes power consumption, extending battery life in portable devices. The instant-on feature ensures no startup delay, improving user experience. The small 208-pin PQFP package fits compact PCBs. Its reprogrammability allows over-the-air feature updates, adding value to consumer products. The device's security features protect against cloning, which is important for brand protection.

おすすめ

A3P600-2PQ208I · Microchip Technology MSP430FR5994 · Texas Instruments

💊

Medical Devices

The A3P400-PQ208I is suitable for medical devices requiring reliable, secure, and instant-on logic. Applications include patient monitoring, diagnostic equipment, and portable medical instruments. The 400K gates and 151 I/Os can implement signal processing, data acquisition, and display control. The industrial temperature range ensures operation in clinical environments. The flash-based configuration provides instant-on, which is critical for life-saving equipment. The device's security features protect patient data and device firmware from tampering. Its low power consumption is beneficial for battery-powered portable devices. The 208-pin PQFP package is suitable for compact medical device PCBs.

おすすめ

A3P600-2PQ208I · Microchip Technology ADS131M08 · Texas Instruments

✈️

Aerospace and Defense

In aerospace and defense, the A3P400-PQ208I provides secure, instant-on, and radiation-tolerant logic for avionics, UAVs, and secure communications. The 400K gates and 151 I/Os can implement flight control, telemetry, and encryption. The flash-based configuration is inherently secure against reverse engineering, protecting sensitive IP. The instant-on feature is critical for mission-critical systems. The industrial temperature range covers harsh environments. The device's low power consumption is beneficial for battery-powered UAVs. Its reprogrammability allows in-field updates, reducing logistics. The 208-pin PQFP package is robust for vibration and thermal cycling.

おすすめ

A3P600-2PQ208I · Microchip Technology TMS320F28335PTPQ · Texas Instruments

おすすめ製品の概要

A3P600-2PQ208I Microchip Technology 使用用途: Industrial Control Systems, Automotive Electronics, Communications Infrastructure, Consumer Electronics, Medical Devices, Aerospace and Defense MSP430F5304IPTR Texas Instruments 使用用途: Industrial Control Systems, Industrial Control Systems TMS320F28027PTT Texas Instruments 使用用途: Automotive Electronics KSZ8081MNX Companion Ethernet PHY 使用用途: Communications Infrastructure MSP430FR5994 Texas Instruments 使用用途: Consumer Electronics ADS131M08 Texas Instruments 使用用途: Medical Devices TMS320F28335PTPQ Texas Instruments 使用用途: Aerospace and Defense

What is the A3P400-PQ208I?

The A3P400-PQ208I is a ProASIC3 family Field Programmable Gate Array (FPGA) from Microchip Technology. It features 400,000 system gates, 55,296 bits of RAM, and 151 user I/Os in a 208-pin PQFP package. It operates from a 1.5V core supply and is flash-based, providing instant-on, nonvolatile, and reprogrammable logic. According to the Microchip ProASIC3 datasheet, it supports system performance up to 231 MHz.

What is the price of A3P400-PQ208I?

As of 2026-08-31, the A3P400-PQ208I is priced at $42.50 for a single unit, $38.25 each for 10 units, $34.00 each for 100 units, $30.60 each for 500 units, and $27.20 each for 1000 units. These prices are based on distributor data from DigiKey and Octopart. Volume pricing may vary by distributor and availability.

Where to buy A3P400-PQ208I online?

The A3P400-PQ208I can be purchased online from major distributors including DigiKey, Mouser, and Octopart. DigiKey lists it as 'ships today' with stock available. You can also order directly from Microchip's website or through authorized distributors. For the best pricing, compare bulk discounts on Octopart, which aggregates quotes from 11 distributors.

What is the lead time for A3P400-PQ208I?

The lead time for A3P400-PQ208I varies by distributor and order quantity. DigiKey indicates it is in stock and ships today for immediate orders. For larger volumes, lead times may extend to 4-6 weeks depending on supply chain conditions. As of 2026-08-31, the part is in active production, so lead times are generally short. Contact your preferred distributor for current lead time quotes.

Is A3P400-PQ208I in stock?

Yes, the A3P400-PQ208I is in stock at major distributors. DigiKey lists it as 'ships today' with inventory available. Octopart shows availability from 11 distributors, indicating healthy stock levels. As of 2026-08-31, the part is in active production, so supply is generally reliable. Check distributor websites for real-time stock status.

What is the difference between A3P400-PQ208I and A3P400-PQG208I?

The A3P400-PQ208I and A3P400-PQG208I are both ProASIC3 FPGAs with 400K gates, but they differ in package and temperature grade. The PQ208I uses a 208-pin PQFP package with an industrial temperature range (-40C to +100C), while the PQG208I uses a 208-pin PQFP with a 'G' suffix indicating a green (RoHS-compliant) package, also industrial temperature. They are pin-compatible drop-in replacements, but the PQG208I is the lead-free version.

What is the difference between A3P400-PQ208I and A3P600-PQ208I?

The A3P400-PQ208I and A3P600-PQ208I are both ProASIC3 FPGAs in the same 208-pin PQFP package, but they differ in density. The A3P400 has 400,000 system gates, 55,296 RAM bits, and 151 I/Os, while the A3P600 has 600,000 system gates, 110,592 RAM bits, and 151 I/Os. The A3P600 offers 50% more logic and 100% more RAM, making it suitable for larger designs. Both operate at 1.5V core and are pin-compatible.

When should I choose A3P400-PQ208I over A3P600-PQ208I?

Choose the A3P400-PQ208I when your design requires up to 400K gates and 55K RAM bits, and you want to minimize cost and power consumption. The A3P400 is ideal for medium-density applications like protocol bridging, motor control, and display interfaces. If your design needs more than 400K gates or 55K RAM bits, or you anticipate future logic expansion, choose the A3P600-PQ208I, which offers 600K gates and 110K RAM bits in the same package.

What is the best drop-in replacement for A3P400-PQ208I?

The best drop-in replacement for A3P400-PQ208I is the A3P400-PQG208I, which is the RoHS-compliant version of the same device. It has identical pinout, package, and specifications, making it a 100% drop-in replacement. Other pin-compatible alternatives include the A3P400-2PQG208 and A3P400-1PQG208I, which differ only in speed grade. For higher density, the A3P600-PQ208I is also pin-compatible.

Can A3P600-PQ208I replace A3P400-PQ208I?

Yes, the A3P600-PQ208I can replace the A3P400-PQ208I as a drop-in replacement. Both devices share the same 208-pin PQFP package and pinout, so no PCB changes are required. The A3P600 offers 600K gates and 110K RAM bits, which is a superset of the A3P400's resources. However, the A3P600 may have slightly different timing characteristics, so re-verify your design's timing constraints after replacement.

Where to download A3P400-PQ208I datasheet PDF?

The A3P400-PQ208I datasheet PDF can be downloaded from Microchip's website. The official ProASIC3 Flash Family FPGAs datasheet (DS50003269) is available at https://ww1.microchip.com/downloads/aemDocuments/documents/FPGA/ProductDocuments/DataSheets/ProASIC%C2%AE3-Flash-Family-FPGAs-with-Optimal-Soft-ARM-Datasheet-DS50003269.pdf. It is also available on distributor sites like DigiKey and Octopart.

Where to find A3P400-PQ208I pinout?

The A3P400-PQ208I pinout is detailed in the ProASIC3 Flash Family FPGAs datasheet, specifically in the 'Package Pin Assignments' section. The 208-pin PQFP pinout is also available in Microchip's Libero SoC design software and on distributor websites. The pinout includes 151 user I/Os, power, ground, and configuration pins. Refer to the datasheet for the complete pin assignment table.

Is A3P400-PQ208I the same as A3P400-PQG208I?

The A3P400-PQ208I and A3P400-PQG208I are essentially the same device, differing only in RoHS compliance. The 'G' in PQG208I indicates a green, lead-free package, while the PQ208I may contain lead. Both have identical pinout, package, and electrical specifications. The PQG208I is the preferred choice for new designs requiring RoHS compliance.

What are the key specifications of A3P400-PQ208I that engineers should know?

Engineers should know that the A3P400-PQ208I is a ProASIC3 FPGA with 400,000 system gates, 55,296 RAM bits, and 151 user I/Os. It operates from a 1.5V core supply and supports system performance up to 231 MHz. The device is flash-based, providing instant-on, nonvolatile, and reprogrammable logic. It comes in a 208-pin PQFP package with an industrial temperature range of -40C to +100C.

What is the best Microchip equivalent for A3P400-PQ208I?

The best Microchip equivalent for A3P400-PQ208I is the A3P400-PQG208I, which is the RoHS-compliant version of the same device. It offers identical specifications and pinout, making it a direct drop-in replacement. For designs requiring higher density, the A3P600-PQ208I is also a Microchip equivalent with 600K gates and 110K RAM bits in the same package.

エンジニアリング参考データ: A3P400-PQ208I — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the A3P400-PQ208I when you need a medium-density FPGA with 400K gates and 55K RAM bits in a 208-pin PQFP package, and you require industrial temperature range (-40C to +100C). It is ideal for applications like industrial control, automotive, and communications. If you need RoHS compliance, select the A3P400-PQG208I, which is identical but lead-free. For higher performance, consider the A3P400-2PQG208 (faster speed grade) or A3P400-1PQG208I (slower, industrial). If your design requires more logic or RAM, the A3P600-PQ208I and A3P600-2PQ208I offer 600K gates and 110K RAM bits in the same package, providing a clear upgrade path without PCB redesign. All alternatives are pin-compatible drop-in replacements, simplifying BOM management and design flexibility.

代替品との比較

パラメータ	この製品	A3P400-PQG208I	A3P400-2PQG208	A3P400-1PQG208I	A3P600-PQ208I	A3P600-2PQ208I
Package	208-Pin PQFP (PQ208)	208-Pin PQFP (PQ208) - same	208-Pin PQFP (PQ208) - same	208-Pin PQFP (PQ208) - same	208-Pin PQFP (PQ208) - same	208-Pin PQFP (PQ208) - same
Brand	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
System Gates	400000	400000	400000	400000	600000	600000
RAM Bits	55296	55296	55296	55296	110592	110592
User I/Os	151	151	151	151	151	151
Speed Grade	Standard	Standard	-2 (Faster)	-1 (Slower)	Standard	-2 (Faster)
RoHS Compliant	Yes	Yes	Yes	Yes	Yes	Yes
Operating Temperature	-40C to +100C	-40C to +100C	0C to +70C	-40C to +100C	-40C to +100C	-40C to +100C

主な差別化要因

RoHS-compliant version available （vs A3P400-PQ208I (non-G))
Higher density option in same package （vs A3P600-PQ208I)
Speed grade options （vs A3P400-2PQG208)

設計ノート

The A3P400-PQ208I requires a 1.5V core supply. Use a low-dropout regulator (LDO) or a DC-DC converter to generate this rail. Place 0.1uF ceramic capacitors close to each VCC pin and a 10uF bulk capacitor near the power entry point. The core supply should be clean and well-regulated; excessive ripple can cause logic errors. Estimated: For a typical design with 50% logic utilization, the core current is approximately 150mA, resulting in 225mW power dissipation. Ensure the power supply can handle peak inrush current during configuration.

For the 208-pin PQFP package, ensure adequate decoupling on all VCC and GND pins. Use a 4-layer PCB with dedicated power and ground planes to minimize impedance. Place vias close to the package pads to connect to the planes. The PQFP has a 0.5mm pitch, so use fine-pitch soldering techniques. Follow Microchip's layout guidelines in the ProASIC3 datasheet for optimal signal integrity. Avoid routing high-speed signals near the configuration pins to prevent noise coupling.

A common mistake is assigning incompatible I/O standards to the same I/O bank. The A3P400 has four I/O banks, each with a dedicated VCCIBX supply. All I/Os in a bank must use the same voltage standard. Refer to the datasheet for the VCCIBX voltage requirements for each standard. Another pitfall is forgetting to connect the JTAG pins for programming. Ensure TCK, TMS, TDI, and TDO are properly terminated. Also, verify that the 1.5V core supply is within the specified range (1.425V to 1.575V) to avoid reliability issues.

コンプライアンス情報

RoHS

Compliant

REACH

Unknown

AEC-Q100

Not Applicable

鉛フリー

Yes

ハロゲンフリー

Unknown

紛争鉱物

Unknown

RoHS compliance inferred from the 'G' suffix in the PQG208I variant. The A3P400-PQ208I (non-G) may not be RoHS compliant. AEC-Q100 not applicable for FPGA devices.

データ検証日: 2026-08-31 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

出典: Distributor, Octopart, Manufacturer Product Page, Manufacturer Datasheet